Merge tag 'v3.16-rc5' into next/fixes-non-critical

Linux 3.16-rc5

5 files changed, 134 insertions, 46 deletions

diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index 44b38b92236a..7c9b484735c5 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -52,6 +52,10 @@
 #define CDC_NCM_NTB_MAX_SIZE_TX                 32768   /* bytes */
 #define CDC_NCM_NTB_MAX_SIZE_RX                 32768   /* bytes */
 
+/* Initial NTB length */
+#define CDC_NCM_NTB_DEF_SIZE_TX                 16384   /* bytes */
+#define CDC_NCM_NTB_DEF_SIZE_RX                 16384   /* bytes */
+
 /* Minimum value for MaxDatagramSize, ch. 6.2.9 */
 #define CDC_NCM_MIN_DATAGRAM_SIZE               1514    /* bytes */
 
@@ -72,16 +76,9 @@
 /* Restart the timer, if amount of datagrams is less than given value */
 #define CDC_NCM_RESTART_TIMER_DATAGRAM_CNT      3
 #define CDC_NCM_TIMER_PENDING_CNT               2
-#define CDC_NCM_TIMER_INTERVAL                  (400UL * NSEC_PER_USEC)
-
-/* The following macro defines the minimum header space */
-#define CDC_NCM_MIN_HDR_SIZE \
-        (sizeof(struct usb_cdc_ncm_nth16) + sizeof(struct usb_cdc_ncm_ndp16) + \
-        (CDC_NCM_DPT_DATAGRAMS_MAX + 1) * sizeof(struct usb_cdc_ncm_dpe16))
-
-#define CDC_NCM_NDP_SIZE \
-        (sizeof(struct usb_cdc_ncm_ndp16) +                             \
-              (CDC_NCM_DPT_DATAGRAMS_MAX + 1) * sizeof(struct usb_cdc_ncm_dpe16))
+#define CDC_NCM_TIMER_INTERVAL_USEC             400UL
+#define CDC_NCM_TIMER_INTERVAL_MIN              5UL
+#define CDC_NCM_TIMER_INTERVAL_MAX              (U32_MAX / NSEC_PER_USEC)
 
 #define cdc_ncm_comm_intf_is_mbim(x)  ((x)->desc.bInterfaceSubClass == USB_CDC_SUBCLASS_MBIM && \
                                        (x)->desc.bInterfaceProtocol == USB_CDC_PROTO_NONE)
@@ -107,6 +104,9 @@ struct cdc_ncm_ctx {
         spinlock_t mtx;
         atomic_t stop;
 
+        u32 timer_interval;
+        u32 max_ndp_size;
+
         u32 tx_timer_pending;
         u32 tx_curr_frame_num;
         u32 rx_max;
@@ -118,10 +118,21 @@ struct cdc_ncm_ctx {
         u16 tx_ndp_modulus;
         u16 tx_seq;
         u16 rx_seq;
-        u16 connected;
+        u16 min_tx_pkt;
+
+        /* statistics */
+        u32 tx_curr_frame_payload;
+        u32 tx_reason_ntb_full;
+        u32 tx_reason_ndp_full;
+        u32 tx_reason_timeout;
+        u32 tx_reason_max_datagram;
+        u64 tx_overhead;
+        u64 tx_ntbs;
+        u64 rx_overhead;
+        u64 rx_ntbs;
 };
 
-u8 cdc_ncm_select_altsetting(struct usbnet *dev, struct usb_interface *intf);
+u8 cdc_ncm_select_altsetting(struct usb_interface *intf);
 int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting);
 void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf);
 struct sk_buff *cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign);
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index d3ca3b53837c..7373203140e7 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -57,6 +57,61 @@
 struct usb_configuration;
 
 /**
+ * struct usb_os_desc_ext_prop - describes one "Extended Property"
+ * @entry: used to keep a list of extended properties
+ * @type: Extended Property type
+ * @name_len: Extended Property unicode name length, including terminating '\0'
+ * @name: Extended Property name
+ * @data_len: Length of Extended Property blob (for unicode store double len)
+ * @data: Extended Property blob
+ * @item: Represents this Extended Property in configfs
+ */
+struct usb_os_desc_ext_prop {
+        struct list_head        entry;
+        u8                      type;
+        int                     name_len;
+        char                    *name;
+        int                     data_len;
+        char                    *data;
+        struct config_item      item;
+};
+
+/**
+ * struct usb_os_desc - describes OS descriptors associated with one interface
+ * @ext_compat_id: 16 bytes of "Compatible ID" and "Subcompatible ID"
+ * @ext_prop: Extended Properties list
+ * @ext_prop_len: Total length of Extended Properties blobs
+ * @ext_prop_count: Number of Extended Properties
+ * @opts_mutex: Optional mutex protecting config data of a usb_function_instance
+ * @group: Represents OS descriptors associated with an interface in configfs
+ * @owner: Module associated with this OS descriptor
+ */
+struct usb_os_desc {
+        char                    *ext_compat_id;
+        struct list_head        ext_prop;
+        int                     ext_prop_len;
+        int                     ext_prop_count;
+        struct mutex            *opts_mutex;
+        struct config_group     group;
+        struct module           *owner;
+};
+
+/**
+ * struct usb_os_desc_table - describes OS descriptors associated with one
+ * interface of a usb_function
+ * @if_id: Interface id
+ * @os_desc: "Extended Compatibility ID" and "Extended Properties" of the
+ *      interface
+ *
+ * Each interface can have at most one "Extended Compatibility ID" and a
+ * number of "Extended Properties".
+ */
+struct usb_os_desc_table {
+        int                     if_id;
+        struct usb_os_desc      *os_desc;
+};
+
+/**
  * struct usb_function - describes one function of a configuration
  * @name: For diagnostics, identifies the function.
  * @strings: tables of strings, keyed by identifiers assigned during bind()
@@ -73,6 +128,10 @@ struct usb_configuration;
  *      be available at super speed.
  * @config: assigned when @usb_add_function() is called; this is the
  *      configuration with which this function is associated.
+ * @os_desc_table: Table of (interface id, os descriptors) pairs. The function
+ *      can expose more than one interface. If an interface is a member of
+ *      an IAD, only the first interface of IAD has its entry in the table.
+ * @os_desc_n: Number of entries in os_desc_table
  * @bind: Before the gadget can register, all of its functions bind() to the
  *      available resources including string and interface identifiers used
  *      in interface or class descriptors; endpoints; I/O buffers; and so on.
@@ -129,6 +188,9 @@ struct usb_function {
 
         struct usb_configuration        *config;
 
+        struct usb_os_desc_table        *os_desc_table;
+        unsigned                        os_desc_n;
+
         /* REVISIT:  bind() functions can be marked __init, which
          * makes trouble for section mismatch analysis.  See if
          * we can't restructure things to avoid mismatching.
@@ -327,6 +389,8 @@ extern void usb_composite_unregister(struct usb_composite_driver *driver);
 extern void usb_composite_setup_continue(struct usb_composite_dev *cdev);
 extern int composite_dev_prepare(struct usb_composite_driver *composite,
                 struct usb_composite_dev *cdev);
+extern int composite_os_desc_req_prepare(struct usb_composite_dev *cdev,
+                                         struct usb_ep *ep0);
 void composite_dev_cleanup(struct usb_composite_dev *cdev);
 
 static inline struct usb_composite_driver *to_cdriver(
@@ -335,11 +399,19 @@ static inline struct usb_composite_driver *to_cdriver(
         return container_of(gdrv, struct usb_composite_driver, gadget_driver);
 }
 
+#define OS_STRING_QW_SIGN_LEN           14
+#define OS_STRING_IDX                   0xEE
+
 /**
  * struct usb_composite_device - represents one composite usb gadget
  * @gadget: read-only, abstracts the gadget's usb peripheral controller
  * @req: used for control responses; buffer is pre-allocated
+ * @os_desc_req: used for OS descriptors responses; buffer is pre-allocated
  * @config: the currently active configuration
+ * @qw_sign: qwSignature part of the OS string
+ * @b_vendor_code: bMS_VendorCode part of the OS string
+ * @use_os_string: false by default, interested gadgets set it
+ * @os_desc_config: the configuration to be used with OS descriptors
  *
  * One of these devices is allocated and initialized before the
  * associated device driver's bind() is called.
@@ -369,9 +441,16 @@ static inline struct usb_composite_driver *to_cdriver(
 struct usb_composite_dev {
         struct usb_gadget               *gadget;
         struct usb_request              *req;
+        struct usb_request              *os_desc_req;
 
         struct usb_configuration        *config;
 
+        /* OS String is a custom (yet popular) extension to the USB standard. */
+        u8                              qw_sign[OS_STRING_QW_SIGN_LEN];
+        u8                              b_vendor_code;
+        struct usb_configuration        *os_desc_config;
+        unsigned int                    use_os_string:1;
+
         /* private: */
         /* internals */
         unsigned int                    suspended:1;
diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h
index 32754835a39b..b0a39243295a 100644
--- a/include/linux/usb/msm_hsusb.h
+++ b/include/linux/usb/msm_hsusb.h
@@ -23,21 +23,6 @@
 #include <linux/clk.h>
 
 /**
- * Supported USB modes
- *
- * USB_PERIPHERAL       Only peripheral mode is supported.
- * USB_HOST             Only host mode is supported.
- * USB_OTG              OTG mode is supported.
- *
- */
-enum usb_mode_type {
-        USB_NONE = 0,
-        USB_PERIPHERAL,
-        USB_HOST,
-        USB_OTG,
-};
-
-/**
  * OTG control
  *
  * OTG_NO_CONTROL       Id/VBUS notifications not required. Useful in host
@@ -115,27 +100,23 @@ enum usb_chg_type {
 /**
  * struct msm_otg_platform_data - platform device data
  *              for msm_otg driver.
- * @phy_init_seq: PHY configuration sequence. val, reg pairs
- *              terminated by -1.
+ * @phy_init_seq: PHY configuration sequence values. Value of -1 is reserved as
+ *              "do not overwrite default vaule at this address".
+ * @phy_init_sz: PHY configuration sequence size.
  * @vbus_power: VBUS power on/off routine.
  * @power_budget: VBUS power budget in mA (0 will be treated as 500mA).
  * @mode: Supported mode (OTG/peripheral/host).
  * @otg_control: OTG switch controlled by user/Id pin
- * @default_mode: Default operational mode. Applicable only if
- *              OTG switch is controller by user.
- * @pclk_src_name: pclk is derived from ebi1_usb_clk in case of 7x27 and 8k
- *              dfab_usb_hs_clk in case of 8660 and 8960.
  */
 struct msm_otg_platform_data {
         int *phy_init_seq;
+        int phy_init_sz;
         void (*vbus_power)(bool on);
         unsigned power_budget;
-        enum usb_mode_type mode;
+        enum usb_dr_mode mode;
         enum otg_control_type otg_control;
-        enum usb_mode_type default_mode;
         enum msm_usb_phy_type phy_type;
         void (*setup_gpio)(enum usb_otg_state state);
-        char *pclk_src_name;
         int (*link_clk_reset)(struct clk *link_clk, bool assert);
         int (*phy_clk_reset)(struct clk *phy_clk);
 };
@@ -147,7 +128,6 @@ struct msm_otg_platform_data {
  * @irq: IRQ number assigned for HSUSB controller.
  * @clk: clock struct of usb_hs_clk.
  * @pclk: clock struct of usb_hs_pclk.
- * @pclk_src: pclk source for voting.
  * @phy_reset_clk: clock struct of usb_phy_clk.
  * @core_clk: clock struct of usb_hs_core_clk.
  * @regs: ioremapped register base address.
@@ -168,7 +148,6 @@ struct msm_otg {
         int irq;
         struct clk *clk;
         struct clk *pclk;
-        struct clk *pclk_src;
         struct clk *phy_reset_clk;
         struct clk *core_clk;
         void __iomem *regs;
@@ -179,10 +158,18 @@ struct msm_otg {
         atomic_t in_lpm;
         int async_int;
         unsigned cur_power;
+        int phy_number;
         struct delayed_work chg_work;
         enum usb_chg_state chg_state;
         enum usb_chg_type chg_type;
         u8 dcd_retries;
+        struct regulator *v3p3;
+        struct regulator *v1p8;
+        struct regulator *vddcx;
+
+        struct reset_control *phy_rst;
+        struct reset_control *link_rst;
+        int vdd_levels[3];
 };
 
 #endif
diff --git a/include/linux/usb/msm_hsusb_hw.h b/include/linux/usb/msm_hsusb_hw.h
index 6e97a2d3d39f..a29f6030afb1 100644
--- a/include/linux/usb/msm_hsusb_hw.h
+++ b/include/linux/usb/msm_hsusb_hw.h
@@ -16,6 +16,9 @@
 #ifndef __LINUX_USB_GADGET_MSM72K_UDC_H__
 #define __LINUX_USB_GADGET_MSM72K_UDC_H__
 
+/* USB phy selector - in TCSR address range */
+#define USB2_PHY_SEL         0xfd4ab000
+
 #define USB_AHBBURST         (MSM_USB_BASE + 0x0090)
 #define USB_AHBMODE          (MSM_USB_BASE + 0x0098)
 #define USB_CAPLENGTH        (MSM_USB_BASE + 0x0100) /* 8 bit */
@@ -25,13 +28,15 @@
 #define USB_OTGSC            (MSM_USB_BASE + 0x01A4)
 #define USB_USBMODE          (MSM_USB_BASE + 0x01A8)
 #define USB_PHY_CTRL         (MSM_USB_BASE + 0x0240)
+#define USB_PHY_CTRL2        (MSM_USB_BASE + 0x0278)
 
 #define USBCMD_RESET   2
 #define USB_USBINTR          (MSM_USB_BASE + 0x0148)
 
 #define PORTSC_PHCD            (1 << 23) /* phy suspend mode */
-#define PORTSC_PTS_MASK         (3 << 30)
-#define PORTSC_PTS_ULPI         (3 << 30)
+#define PORTSC_PTS_MASK        (3 << 30)
+#define PORTSC_PTS_ULPI        (2 << 30)
+#define PORTSC_PTS_SERIAL      (3 << 30)
 
 #define USB_ULPI_VIEWPORT    (MSM_USB_BASE + 0x0170)
 #define ULPI_RUN              (1 << 30)
@@ -41,9 +46,14 @@
 #define ULPI_DATA(n)          ((n) & 255)
 #define ULPI_DATA_READ(n)     (((n) >> 8) & 255)
 
+/* synopsys 28nm phy registers */
+#define ULPI_PWR_CLK_MNG_REG    0x88
+#define OTG_COMP_DISABLE        BIT(0)
+
 #define ASYNC_INTR_CTRL         (1 << 29) /* Enable async interrupt */
 #define ULPI_STP_CTRL           (1 << 30) /* Block communication with PHY */
 #define PHY_RETEN               (1 << 1) /* PHY retention enable/disable */
+#define PHY_POR_ASSERT          (1 << 0) /* USB2 28nm PHY POR ASSERT */
 
 /* OTG definitions */
 #define OTGSC_INTSTS_MASK       (0x7f << 16)
diff --git a/include/linux/usb/usb_phy_gen_xceiv.h b/include/linux/usb/usb_phy_generic.h
index cc8d818a83be..68adae83affc 100644
--- a/include/linux/usb/usb_phy_gen_xceiv.h
+++ b/include/linux/usb/usb_phy_generic.h
@@ -3,7 +3,7 @@
 
 #include <linux/usb/otg.h>
 
-struct usb_phy_gen_xceiv_platform_data {
+struct usb_phy_generic_platform_data {
         enum usb_phy_type type;
         unsigned long clk_rate;
 
@@ -13,16 +13,17 @@ struct usb_phy_gen_xceiv_platform_data {
         int gpio_reset;
 };
 
-#if defined(CONFIG_NOP_USB_XCEIV) || (defined(CONFIG_NOP_USB_XCEIV_MODULE) && defined(MODULE))
+#if IS_ENABLED(CONFIG_NOP_USB_XCEIV)
 /* sometimes transceivers are accessed only through e.g. ULPI */
-extern void usb_nop_xceiv_register(void);
-extern void usb_nop_xceiv_unregister(void);
+extern struct platform_device *usb_phy_generic_register(void);
+extern void usb_phy_generic_unregister(struct platform_device *);
 #else
-static inline void usb_nop_xceiv_register(void)
+static inline struct platform_device *usb_phy_generic_register(void)
 {
+        return NULL;
 }
 
-static inline void usb_nop_xceiv_unregister(void)
+static inline void usb_phy_generic_unregister(struct platform_device *pdev)
 {
 }
 #endif